Add a WebWidget::paintCompositedDeprecated.

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index c7bd60281f12277fc42607777511075a526ae111..34751cd5717cb692e1a1d5fbcfc5142e4a080a34 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -1806,6 +1806,29 @@ void WebViewImpl::paint(WebCanvas* canvas, const WebRect& rect, PaintOptions opt
     }
 }
 
+#if OS(ANDROID)
+void WebViewImpl::paintCompositedDeprecated(WebCanvas* canvas, const WebRect& rect, PaintOptions option)

[enne (OOO), 2014/05/02 23:34:45]

Does this even compile? Looks like your definition has an extra arg here.

[danakj, 2014/05/02 23:36:07]

Oops, probly not, was going to let bots tell me :)

+{
+    // Note: This method exists on OS(ANDROID) and will hopefully be
+    //       removed once the link disambiguation feature renders using
+    //       the compositor.
+    ASSERT(isAcceleratedCompositingActive());
+
+    FrameView* view = page()->mainFrame()->view();
+    PaintBehavior oldPaintBehavior = view->paintBehavior();
+    view->setPaintBehavior(oldPaintBehavior | PaintBehaviorFlattenCompositingLayers);
+
+    double paintStart = currentTime();

[enne (OOO), 2014/05/02 23:34:45]

This duplicated timing code makes me a little sad, but I'm mostly not sure that
it's worth keeping around anymore.

[danakj, 2014/05/02 23:36:07]

I was going to make this call paint() but I want paint() to assert that we're
not composited.

+    PageWidgetDelegate::paint(m_page.get(), pageOverlays(), canvas, rect, isTransparent() ? PageWidgetDelegate::Translucent : PageWidgetDelegate::Opaque);
+    double paintEnd = currentTime();
+    double pixelsPerSec = (rect.width * rect.height) / (paintEnd - paintStart);
+    blink::Platform::current()->histogramCustomCounts("Renderer4.SoftwarePaintDurationMS", (paintEnd - paintStart) * 1000, 0, 120, 30);
+    blink::Platform::current()->histogramCustomCounts("Renderer4.SoftwarePaintMegapixPerSecond", pixelsPerSec / 1000000, 10, 210, 30);
+
+    view->setPaintBehavior(oldPaintBehavior);
+}
+#endif
+
 bool WebViewImpl::compositeAndReadbackAsync(WebCompositeAndReadbackAsyncCallback* callback)
 {
     if (!isAcceleratedCompositingActive())